Systems and methods for imbedded intramuscular implants

• US 6,692,520 B1
• Filed: 12/15/1998
• Issued: 02/17/2004
• Est. Priority Date: 12/15/1998
• Status: Expired due to Fees

• Current Assignee: C.R. Bard, Inc. (Becton, Dickinson & Co)
• Original Assignee: C.R. Bard, Inc. (Becton, Dickinson & Co)
• Inventors: Gambale, Richard A., Shah, Chirag B., Forcucci, Stephen, Weiser, Mike
• Primary Examiner(s): BARRETT, THOMAS C
• Application Number:
  US09/211,332
• Time in Patent Office: 1,890 Days
• Field of Search: 623/1.1, 623/1.12, 623/1.15, 623/11.11, 623/14.13, 623/23.72, 128/898, 128/899
• US Class Current: 623/1.1
• CPC Class Codes: A61F 2/02 Prostheses implantable into the body closure means for urethra or rectum or for artificial body openings therefor A61F2/0004
• CPC Class Codes: A61F 2/064 with special features to facilitate anastomotic coupling anastomosis of natural blood vessels A61B17/11
• CPC Class Codes: A61F 2/2493 Transmyocardial revascularisation [TMR] devices

Abstract

The invention includes systems and methods for stimulating intramuscular angiogenesis by placing a biocompatible device within the tissue of a muscle. The biocompatible device is dimensionally adapted for placement within the tissue of a muscle. Placement of the biocompatible device within the muscle can take place according to the method of the invention by using techniques familiar to those of ordinary skill in the art. Illustrative techniques for placement of the device within the myocardium comprise one practice of the method of the invention.

Claims

1. An apparatus for promoting angiogenesis comprising:

a flexible body formed of a biocompatible material and being dimensionally adapted for implantation within tissue of a muscle wherein said flexible body comprises a bellows for expanding and contracting responsive to muscle relaxation and contraction wherein said body defines a lumen that is adapted to maintain an open cavity in the tissue sufficient to permit blood pooling and external projections configured to create cavities between the tissue and the body to thereby stimulate angiogenesis.

2. An apparatus according to claim 1 wherein the projections are defined by annular ripples of the bellows.

3. An apparatus according to claim 1 further comprising at least one port in the body open to the lumen.

4. An apparatus according to claim 1 further comprising a drug releasing compound retained by a surface of the device.

5. An apparatus according to claim 4 wherein the drug releasing compound is contained within a lumen of the body.

6. An apparatus according to claim 4 wherein the drug releasing compound is applied to a surface of the device by a coating.

7. An apparatus according to claim 4 wherein at least a portion of the body is formed from a drug releasing compound.

8. An apparatus according to claim 3 wherein a drug releasing compound contained within the lumen of the body diffuses through the port during compression of the bellows.

9. An apparatus according to claim 1 further comprising a radiation source carried by the body.